Vinyl Ether Polymerization Radical

Vinyl ethers 1 which have a strongly electron donating alkoxy substituent readily form polymers on treatment with an acidic compound initiator the polymerization is thus cationic in nature.

Vinyl ether polymerization radical.

Provided is a method for the polymerization of vinyl ethers catalyzed by complexes of a lithium salt and a polyether. A preferred complex is a complex of lithium tetrafluoroborate and a glyme. No anionic or radical polymerizations give high polymers from vinyl ethers except for the alternating radical copolymerization with an electron deficient monomer. Thienyl chloride initiated living cationic polymerization.

Macromolecules 2020 53 5 1536 1542. This method however is highly sensitive to monomer structure and achieved only 76 m and 64 m in the case of n butyl bve and ethyl vinyl ether eve respectively. The resulting polymers are produced under mild and controlled conditions and are useful in adhesives and coatings as well as in other uses such as for polymer electrolytes in batteries and for viscosity. In order to overcome the challenge of direct radical polymerization of vinyl ethers commercial hydroxy functional vinyl ethers such as 2 hydroxyethyl vinyl ether heve were subjected to free radical polymerization generating.

Unprecedented controlled radical vinyl polymerization crp of vinyl ethers using reversible addition fragmentation chain transfer raft polymerization is reported. A novel uv curing vinyl ether lcs with a wide temperature range was developed by mixturing various vinyl ether lc monomers. A general and efficient access toward terminally functionalized poly vinyl ether s. A new photoinitiating system for living cationic polymerization of vinyl ethers is reported.

It is remarkable that only 10 addition of dve 3 increases the conversion of the acrylate from. Polymerization rate in figure 5 the conversion of acrylate 1407 cm 1 and vinyl ether groups 1618 cm 1 are plotted as a function of vinyl ether content. In the current approach visible light irradiation of dimanganese decacarbonyl mn 2 co 10 in the presence of an alkyl bromide results in the formation of carbon centered radicals the photochemically generated radicals were then oxidized by diphenyliodonium ions to the corresponding cations. For the divinyl ether of triethylene glycol the chain reaction was shown to develop rapidly and extensively with kinetic chain lengths on the order of 10 000.

Radical cationic acrylate vinyl ether radical figure 5.